// components/my-prop/my-prop.js
Component({
  /**
   * 组件的属性列表
   */
  properties: {
    // title: String,
    title: {
      type: String,
      value: "默认标题",
      observer: function (newValue, oldValue) {
        console.log(newValue, oldValue);
      }
    }
  },
  externalClasses: ["title-class"],
})
